The Steiner eOptics OTAL-C IR Classic Tactical Laser, Class I, IR Laser, Black, 9056 Beam Color: IR, Color: Black, Power: Less than 0.7, Wavelength: 850, Battery Type: AA, Battery Life: 5, Attachment/Mount Type: QD HT Mount, Water Resistance Level: Waterproof, Water Resistant Mark: 5, Operating Temperature: -40 - 65, Weight: 4.9, Battery Quantity: 1, Additional Features: Low Profile for Mounting in front of scopes, holographic or NV sights, Integrated Push Button Activation Switch, Adjustable Windage and Elevation, Beam Distance: 250, Fabric/Material: Aircraft Aluminum, Height: 1.45, Included Accessories: Remote Cable Pressure Pad, Laser Divergence: 0.8, Length: 3.8, Width: 1.8.